A preparation method of hydrophobic/super-hydrophobic protein coatings

A superhydrophobic, protein technology, applied in textiles, papermaking, non-woven fabrics, etc., can solve the problems of low production efficiency, poor mechanical properties of hydrophobic/superhydrophobic protein coatings, and high equipment requirements, and achieves improved preparation speed, bioavailable. Strong degradability and biocompatibility, good mechanical flexibility

Active Publication Date: 2015-11-25
云智前沿科技发展(深圳)有限公司
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  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a method for preparing a hydrophobic / superhydrophobic protein coating that is environmentally friendly, low in cost, and high in production efficiency, aiming to solve the problem of high equipment requirements and production problems in the production of hydrophobic / superhydrophobic protein coatings in the prior art. Low efficiency and resulting hydrophobic / superhydrophobic coatings with poor mechanical properties

Method used

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  • A preparation method of hydrophobic/super-hydrophobic protein coatings
  • A preparation method of hydrophobic/super-hydrophobic protein coatings
  • A preparation method of hydrophobic/super-hydrophobic protein coatings

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preparation example Construction

[0022] Whether in fundamental research or in industry, superhydrophobic surfaces (SHS) have attracted increasing attention due to their potential applications as self-cleaning surfaces, such as solar cells, automobile windshields, and traffic lights. The SHS surface is also capable of anti-fouling, anti-biofouling, anti-stick and water-repellent properties. Despite numerous successful biomimetic studies to achieve superhydrophobic surfaces, only a few have addressed their potential biomaterial applications. In view of this, the embodiment of the present invention provides a method for preparing a hydrophobic / superhydrophobic protein coating, comprising the following steps:

[0023] S01. Weighing zein and dissolving it in an alcohol-water solution to form a zein solution and then performing mixing treatment, the solubility of the zein solution is 50-400 mg / ml;

[0024] S02. The zein solution is placed in a syringe of an electrospinning device to prepare a hydrophobic / superhydr...

Embodiment 1

[0035] Under normal temperature and pressure (15-35°C, 1 standard atmospheric pressure), weigh 0.5g of zein, dissolve it in 10ml of 80% (v / v) ethanol-water, make a 50mg / ml solution, and ultrasonicate for 10min. until the solution is homogeneous and transparent. The configured solution was injected into the syringe of the electrospinning equipment, the spinning voltage was set to 18kV, the propulsion speed of the spinning solution was 0.2ml / h, and the distance from the spinning needle to the receiving plate was 25cm. Films were prepared by electrospinning equipment. The prepared zein hydrophobic coating has a water contact angle of 138.2°, and its water contact angle and SEM electron micrograph are as attached figure 1 shown.

Embodiment 2

[0037] Under normal temperature and pressure (15-35°C, 1 standard atmospheric pressure), weigh 1.0 g of zein, dissolve it in 10 ml of 80% (v / v) ethanol-water, and prepare a 100 mg / ml solution, and ultrasonicate for 10 min. until the solution is homogeneous and transparent. The configured solution was injected into the syringe of the electrospinning equipment, the spinning voltage was set to 18kV, the propulsion speed of the spinning solution was 0.2ml / h, and the distance from the spinning needle to the receiving plate was 25cm. Films were prepared by electrospinning equipment. The prepared zein superhydrophobic coating has a water contact angle of 153.6°, and its water contact angle and SEM electron microscope pictures are shown in the attached figure 2 shown.

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Abstract

The invention relates to the technical field of amphoteric high molecular materials and provides a preparation method of hydrophobic / super-hydrophobic protein coatings. The method comprises the steps of weighing and taking zein and dissolving the zein in a alcohol-water solution and performing mixing treatment after a zein solution is formed, wherein the solubility of the zein solution is 50-400mg / ml; placing the zein solution in an injector of an electrostatic spinning apparatus for preparing hydrophobic / super-hydrophobic protein coatings. The method is simple in preparation process and low in preparation lost. The preparation speed is increased and the method is applicable to mass production.

Description

technical field [0001] The invention belongs to the technical field of amphoteric polymer materials, and in particular relates to a method for preparing a hydrophobic / superhydrophobic protein coating. Background technique [0002] Hydrophobic materials refer to materials with surface water contact angles greater than 90°, while superhydrophobic materials refer to materials with surface water contact angles greater than 150°. Hydrophobic / superhydrophobic surfaces are generally prepared by two methods: increasing surface roughness and reducing surface energy. The enhancement of surface roughness at the nano- and micro-scale can be obtained by various methods such as photolithography, chemical etching, templating, sol-gel synthesis, controlled crystallization, phase separation, electrospinning, graft polymerization, layer- layer method, deposition and colloidal self-assembly, etc. The acquisition of low surface energy often requires surface chemical coating assistance or surf...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D04H1/728
Inventor 董晓莉董方圆孙卫东梁素华
Owner 云智前沿科技发展(深圳)有限公司
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